Dual Control of Low-Density Lipoprotein Cholesterol Levels by ANGPTL3 and ANGPTL8.

Inactivation of ANGPTL8 alone reduces plasma LDL cholesterol by approximately 20% in mice, with effects dependent on endothelial lipase and ANGPTL3.

• Why it matters: Understanding how ANGPTL3 and ANGPTL8 regulate lipoprotein levels is crucial for developing targeted therapies for dyslipidemia and cardiovascular disease, yet their specific roles remain unclear.
• What they did: The study used liver perfusion, genetically modified mice, and in vitro assays to compare the effects of ANGPTL3 and ANGPTL8 on lipoprotein secretion and lipase activity, focusing on different forms of ANGPTL3 and their interactions.
• The result: Findings suggest that ANGPTL8 works with ANGPTL3 to modulate lipolysis via lipoprotein lipase and endothelial lipase, providing a mechanistic basis for dual-targeted lipid-lowering strategies.